compose.js

/**
 * Turns a group of functions into one unique callable function
 */
function compose(...funcs) {
  const length = funcs.length;

  if (length === 0) {
    return arg => arg
  }

  if (length === 1) {
    return funcs[0];
  }

  return funcs.reduce((a, b) => (...args) => a(b(...args)));
}

export default compose;